parabuzzle
I'm New Here
Does anyone happen to know what primer they use to prime the parts when they do the Quickbuild stuff?
It is (or was in 2009 anyway) SW PG-60-G2 wash primer. Personal experience has shown me that it isn?t much good for corrosion protection (but might be better than nothing); but it does provide an excellent adhesion for a more durable primer if you wanted a bit more protection.
I Think Vans have test couponns outside and have periodically checked the corrosion preventiveness of the primer; the results were excellent. But be careful because it does contain chromium 4 and nasty solvents, so personnal protections need to be taken.
I Think Vans have test couponns outside and have periodically checked the corrosion preventiveness of the primer; the results were excellent. But be careful because it does contain chromium 4 and nasty solvents, so personnal protections need to be taken.
But be careful because it does contain chromium 4 and nasty solvents, so personnal protections need to be taken.
It is (or was in 2009 anyway) SW PG-60-G2 wash primer. Personal experience has shown me that it isn’t much good for corrosion protection (but might be better than nothing); but it does provide an excellent adhesion for a more durable primer if you wanted a bit more protection.
I Think Vans have test couponns outside and have periodically checked the corrosion preventiveness of the primer; the results were excellent. But be careful because it does contain chromium 4 and nasty solvents, so personnal protections need to be taken.
Yes, do a search. Seems like the test coupons have been outside exposed to the elements for a very long time (10+ years?) and still show no signs of corrosion. I think it's great stuff. Light and easy to spray.
Vans have openly admitted that they use the SW product because it is "inexpensive, dries fast, and is easy to apply" but also acknowledge that "the manufacturer says it needs a top coat".
Additionally Vans states: "Though some disagree it is generally accepted that two-part epoxy primers provide the best corrosion resistance. However, they are expensive, toxic, heavy and dry slowly making them problematic for the home builder. If one can tolerate these issues and desires an RV that would be in good shape for grandchildren to inherit, then two-part epoxy primers may be the "best" solution."
The portion of the test piece that was left bare when coating was originally applied has had surface corrosion steadily developing since day one, as well as any area where the coating has been removed for inspection, begins to develop surface corrosion.
Scott,
How bad does the bare test piece look? If the inner surface of a wing skin or a rib on a completed RV had a similar amount of corrosion, would you still consider it airworthy, or would you be concerned that it wasn't going to last much longer?
Thanks,
Does anyone happen to know what primer they use to prime the parts when they do the Quickbuild stuff?
Scott,
How bad does the bare test piece look? If the inner surface of a wing skin or a rib on a completed RV had a similar amount of corrosion, would you still consider it airworthy, or would you be concerned that it wasn't going to last much longer?
Thanks,
I had the privilege of touring Van's QB assembly facilities in the Philippines this past Spring. The primer they were using was:
Wash Primer Green
SWP-600
"Sphero" Brand
Wash Primer Catalyst
SWPC - 1000
"Sphero" Brand
Wash Primer Reducer
SWPR - 2100
"Sphero" Brand
Joe Reaves
Longview, TX
RV-14A Empennage Complete, Awaiting Fuselage & Wings
Arion Lightning LS-1 ? Flying
Dues paid thru 2019
Hey, reference the Van's news release on 22 March 2021, does anyone know which new primer is being used on QB kits?
"We have also changed the primer being used by the contractor in the Philipines due to a lack of availability of the original primer from the supplier there. This is a permanent change, and the new primer has been evaluated and accepted by Van’s."